799765561107 has 12 divisors (see below), whose sum is σ = 1158489495384. Its totient is φ = 531666622080.

The previous prime is 799765561079. The next prime is 799765561159. The reversal of 799765561107 is 701165567997.

799765561107 is a `hidden beast` number, since 7 + 9 + 9 + 7 + 6 + 5 + 5 + 611 + 0 + 7 = 666.

It is not a de Polignac number, because 799765561107 - 2¹² = 799765557011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (799765560107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125864869 + ... + 125871222.

It is an arithmetic number, because the mean of its divisors is an integer number (96540791282).

Almost surely, 2^799765561107 is an apocalyptic number.

799765561107 is a deficient number, since it is larger than the sum of its proper divisors (358723934277).

799765561107 is a wasteful number, since it uses less digits than its factorization.

799765561107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251736450 (or 251736447 counting only the distinct ones).

The product of its (nonzero) digits is 25004700, while the sum is 63.

The spelling of 799765561107 in words is "seven hundred ninety-nine billion, seven hundred sixty-five million, five hundred sixty-one thousand, one hundred seven".